1,142 research outputs found
An Analytical Criterion for Centrifugal Instability in Non-Axisymmetric Vortices
No full textNon-axisymmetric vortices are ubiquitous in nature; examples include polar vortices in planets, the giant red spot in Jupiter, tornadoes and cyclones on Earth, mesoscale eddies in the ocean. Turbulent flows are furthermore known to be dominated by small- and large-scale vortex structures. Owing to the wide range of applications, knowledge of conditions under which a given vortex becomes unstable is beneficial. Here, the centrifugal instability of two-dimensional, non-axisymmetric vortices in the presence of an axial flow and a background rotation is studied using the local stability approach. The local stability approach, based on geometric optics and similar in formulation to the rapid distortion theory \cite{bib:godeferd2001}, considers the evolution of shortwavelength perturbations along streamlines in the base flow. This approach, developed by Lifschitz Hameiri \cite{bib:lifschitz1991}, is particularly useful for base flows for which a global stability analysis is computationally expensive. A sufficient criterion for centrifugal instability in an axisymmetric vortex with and is first derived by analytically solving the local stability equations for wave vectors that are periodic upon evolution around a closed streamline. This criterion is then heuristically extended to non-axisymmetric vortices and written in terms of integral quantities on a streamline. The criterion is then shown to be accurate in describing centrifugal instability over a reasonably large range of parameters that specify Stuart vortices and Taylor-Green vortices
Addison A. Stuart
No full textAn obituary for Addison A. Stuart, U.S. Civil War veteran and author of the book Iowa Colonels and Regiments
Ash Content of Macrophytes from Chautauqua Lake
No full textAuthor Institution: Department of Biology, State University CollegeNICHOLSON, STUART A. AND LINDA W. POST. Ash Content of Macrophvtes from Chautauqua Lake. Ohio ]. Sci.~74(l): 29, 1975
Stuart, Jesse Hilton, 1907-1984 (SC 1557)
No full textFinding aid and scan (Click on Additional Files below) for Manuscripts Small Collection 1557. Letter, 10 March 1976, from Kentucky author Jesse Hilton Stuart, W-Hollow, Greenup, Kentucky, to John Howard Spurlock, Bowling Green, Kentucky, related to He Sings for Us , Spurlock\u27s book about Stuart\u27s writings
Corrigendum: Pneumococcal vaccine impacts on the population genomics of non-typeable haemophilus influenzae: (Microbial Genomics 2021; 9, 10.1099/mgen.0.000209)
No full textThere was a change in the author names in the published article. The new list should read: David W. Cleary1,2, Vanessa T. Devine3, Denise E. Morris1, Karen L. Osman1, Rebecca A. Gladstone4, Stephen D. Bentley4, Saul N. Faust1,5, Stuart C. Clarke1,2,6 1Faculty of Medicine and Institute for Life Sciences, University of Southampton, Southampton, UK. 2NIHR Southampton Biomedical Research Centre, University Hospital Southampton Foundation NHS Trust, Southampton, UK. 3Northern Ireland Centre for Stratified Medicine and Clinical Translational Research Innovation Centre, Londonderry, UK. 4Pathogen Genomics, Wellcome Trust Sanger Institute, UK. 5NIHR Southampton Clinical Research Facility, University Hospital Southampton Foundation NHS Trust, Southampton, UK. 6Global Health Research Institute, University of Southampton, Southampton, UK.</p
Mrs. Sterling Hamlet with Jesse Stuart (on right), ca. 1958,
No full textMrs. Sterling Hamlet with Jesse Stuart (on right), ca. 1958, b&w. Note on back reads: L. Mrs. Sterling Hamlet (nee Theodosia Kirkland), past president, Women\u27 s Club of Huntington. R. Jesse Stuart (Author\u27s luncheon).https://mds.marshall.edu/doris_miller_papers/1106/thumbnail.jp
Minicomputer Control of a Latex Reactor
No full textTitle: Minicomputer Control of a Latex Reactor, Author: Stuart W. Ray, Location: ThodeA minicomputer software and hardware system was developed to monitor and control the particle size growth in the emulsion polymerization of vinyl acetate. The basis of the on line detector was a UV spectrophotometer which measured turbidity as a function of wavelength . A preliminary investigation was made to develop a technique for converting turbidity measurements into particle size distributions.ThesisMaster of Engineering (ME
Redemption in the work of Francis Stuart
No full textThe idea of redemption is central to an understanding of the work
of Francis Stuart. Through an examination of its development and
expression, it is possible to demonstrate the integrity of his work and
its distinctive qualities. Such a demonstration is necessary because
Stuart's writing has been subjected to comparatively little scholarly
inquiry, although reviews of his work, especially that produced since
1949, suggest that it is impressive and important.
First, a general background to Stuart's work, a discussion of the
special problems associated with reading it, and a summary of his corpus
is provided. This indicates that the idea of redemption is important to
his earliest writing. The state of redemption is shown to be a
necessary apotheosis for Stuart's outcast heroes; it involves spiritual
suffering through which may be found a sense of reintegration and a
higher reality. This is expressed through interrelated themes such as
those of gambler, artist and ordinary man; mystic and criminal; sacred
and profane love; and spirituality and the mundane. The nature of the
redemptive experience is further elaborated by distinctive, complex
motifs, especially the hare, the ark and the woman-Christ. Their
recurrence provides an important element in the unity of Stuart's work.
Because Stuart's idea of the outcast raises important biographical
questions, an examination of the relationship between Stuart's life and
his work is made. Finally, the way in which the idea of redemption
exists in the language structures of Stuart's novels is examined, with
especial reference to his most recent work, The High Consistory. The
thesis shows that the development of the these of redemption
demonstrates the integrity of Stuart's work
Esej o aktualność teorii Stuarta Halla w kontekście badań nad blogosferą
No full textThis essay is talking about topicality of Stuart Hall theory. Author of essay is contending that the Coding/encoding theory of Stuart Hall is still useful in works on blogosphere.In essay author explained the Coding/encoding theory and notions of blogosphere. The author is arguing that that using Coding/encoding theory in works about blogosphere. The author is pointing prospective tesis up
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